Prolonged exposure to high levels of infrared radiation could lead to burns and cause eye problems, including cornea and retina damage, cataracts and injuries to the eye lens. In addition, infrared radiation can cause pain to the skin of a person in close contact with it.Know More
Most infrared radiation is not visible and may affect a person without his knowledge. Similarly, some radiation is neither hot nor colored, making them difficult for people to detect and avoid.
In the electromagnetic spectrum, infrared rays are just below visible red light. Many objects, including lamps, flames, stars and other warm items, emit these rays. They are most commonly used in mobile phones, in remote controls for TV sets and in other short-range communication devices. In addition, physiotherapists use infrared technology to help the healing of athletes' injuries.
Modern weapons have infrared detectors that are designed to spot targets, particularly at night. Although occasional exposure to these rays is not enough to cause danger, everyday contact can cause long-term health problems. Employees working for companies involved in the mass production of lasers and heat lamps have a higher risk of experiencing adverse effects due to exposure. These rays can disrupt body cells, penetrate DNA and cause cancer. Those who are vulnerable are advised to wear protective gear.Learn more about Optics & Waves
Nuclear radiation is the release of energy-bearing rays, waves or particles that occurs when an atom is split. This specific process is called fission, and it can occur in both natural and artificial situations. Nuclear energy can be harnessed from these reactions and transformed into usable electricity, but the waves and particles released during fission can also cause radiation that is dangerous to living beings.Full Answer >
The infrared portion of the electromagnetic spectrum can be divided into three regions of infrared waves, all of which have different lengths. Far-infrared waves measure from 300 gigahertz to 30 terahertz, while mid-infrared waves range from 30 terahertz to 120 terahertz. Near-infrared waves range from 120 to 400 terahertz.Full Answer >
One of the most common uses of infrared rays is for wireless communication, such as with garage door openers, car-locking systems and handheld remote controls for televisions and other appliances. Since all objects emit some degree of infrared radiation, night-vision devices make use of their sensitivity to infrared rays to capture and transmit images when there is no visible light source. Heat-seeking missiles also rely upon infrared technology to track their targets in passive missile-guidance systems.Full Answer >
Some examples of radiating infrared waves are burning charcoal, heat from an electric heater, fire or a radiator emitting warmth. Infrared radiation is a type of electromagnetic radiation that objects emit when they are hot but not quite hot enough to emit visible light. Because infrared radiation can be felt in the form of heat, it is also called thermal radiation.Full Answer >